Two Pictures of a DWEG "House"

Here a house means the figure of a square with an equlateral triangle built on one edge.

Here is what we mean in the usual Euclidean model.

This figure in DWEG looks like the inversion of the Euclidean figure, so you can refer back to the GTC sections on images of segments, etc. Notice here that the DWEG parallel lines in the square appear as circles tangent at O and the DWEG lines which are the extended sides of the triangle meet at 60 degree angles at O. Other DWEG houses look very different depending on their position relative to O. Here are two examples. (Sorry about the jaggy quality of the circles.)